130 citations · 247 across the 3 of their papers we have counts for
3 papers
cond-mat.str-el2008★ 39 cited
Momentum average approximation for models with electron-phonon coupling dependent on the phonon momentum
Glen L. Goodvin, Mona Berciu
We generalize the momentum average (MA) approximation to study the properties of models with momentum-dependent electron-phonon coupling. As in the case of the application of the o…
cond-mat.str-el2007★ 78 cited
Systematic improvement of the Momentum Average approximation for the Green's function of a Holstein polaron
Mona Berciu, Glen L. Goodvin
We show how to systematically improve the Momentum Average (MA)approximation for the Green's function of a Holstein polaron, bysystematically improving the accuracy of the self-ene…
cond-mat.str-el2006★ 130 cited
The Green's Function of the Holstein Polaron
Glen L. Goodvin, Mona Berciu, George A. Sawatzky
We present a novel, highly efficient yet accurate analytical approximation for the Green's function of a Holstein polaron. It is obtained by summing all the self-energy diagrams, b…